# Chapter 4 - An Introduction to Functions - 4-1 Using Graphs to Relate Two Quantities - Mixed Review - Page 239: 27

$A\cap C=\{1,4\}$

#### Work Step by Step

A={-3,1,4} C={1,4,7,12} Identify the elements that appear in both sets to find $A\cap C$. 1 and 4 are the only elements A and C have in common. $A\cap C=\{1,4\}$

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